/***************************************************头部部分*********************************************************/
/*@font-face {
    font-family: 'xingkai';
    src:url('Xingkai.ttc');
}*/
body {
    margin-top: 70px;
    position: relative;
    /*font-family: 'xingkai';*/
}
#nav {
    border-radius: 0;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    padding: 10px 0;
}

#navContainer {
    position: relative;
}

#dropdown-menu {
    background: rgb(49, 49, 49);
}

#dropdown-menu li {
    padding: 10px 0;
}

#dropdown-menu li a {
    color: gray;
}

#dropdown-menu li a:hover {
    color: white;
    background: rgb(49, 49, 49);
}

#download {
    position: absolute;
    right: 0;
    top: 8px;
}

@media (max-width: 770px) {
    #download {
        position: absolute;
        left: 50%;
        margin-left: -41px;
        top: 8px;
    }
}

#boom{
  position: absolute;
  top: 5%;
  right: 20%;
}
@media (max-width: 950px) {
  #boom{
    position: absolute;
    right: 5%;
    top: 10px;
  }
}
@media (max-width: 720px) {
  #boom{
    position: absolute;
    left: 50%;
    top: 10px;
  }
}
